Marine boot



FIG. 1 is a front elevational view of a marine boot showing my new design in closed condition;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view of the boot in open condition. 

The ornamental design for a marine boot, as shown and described. 